Is there functionality to build a sparse tree (as with org-sparse-tree)
using a predicate from Lisp code? I want something like org-map-entries,
but for narrowing/sparsing. Diving through the code, I think (org-scan-tags
'sparse-tree (lambda () … )) might be what I want, but am curious if anyone
else has suggestions from working that use-case.
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Best regards,
Reuben Garrett